https://resources.nu.edu/statsresources/Two-WayANOVA
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The Two-Way ANOVA is similar to the One-Way ANOVA, but is used when comparing groups on two different categorical variables (i.e. gender and level of education). The biggest difference between the One-Way and the Two-Way ANOVA is that in a Two-Way ANOVA, you are interpreting main effects and interaction effects.
Main effects – think of this like a t-test (if only two levels of the IV) or a One-Way ANOVA (if more than two levels)
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